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ENH: Updated coal parcel surface reaction models

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andy 2011-04-21 14:42:53 +01:00
parent 5bb2ac5ec7
commit d2f3ad34d9
6 changed files with 28 additions and 19 deletions
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12
src/lagrangian/coalCombustion/submodels/surfaceReactionModel/COxidationDiffusionLimitedRate/COxidationDiffusionLimitedRate.C
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@ -44,7 +44,8 @@ Foam::COxidationDiffusionLimitedRate<CloudType>::COxidationDiffusionLimitedRate
O2GlobalId_(owner.composition().globalCarrierId("O2")),
CO2GlobalId_(owner.composition().globalCarrierId("CO2")),
WC_(0.0),
WO2_(0.0)
WO2_(0.0),
HcCO2_(0.0)
{
// Determine Cs ids
label idSolid = owner.composition().idSolid();
@ -55,6 +56,8 @@ Foam::COxidationDiffusionLimitedRate<CloudType>::COxidationDiffusionLimitedRate
const scalar WCO2 = owner.thermo().carrier().W(CO2GlobalId_);
WC_ = WCO2 - WO2_;
HcCO2_ = owner.thermo().carrier().Hc(CO2GlobalId_);
if (Sb_ < 0)
{
FatalErrorIn
@ -158,14 +161,11 @@ Foam::scalar Foam::COxidationDiffusionLimitedRate<CloudType>::calculate
dMassSRCarrier[CO2GlobalId_] += dmCO2;
const scalar HsC = thermo.solids().properties()[CsLocalId_].Hs(T);
const scalar HCO2 = thermo.carrier().H(CO2GlobalId_, T);
// carrier enthalpy transfer handled by change in composition
// const scalar HsO2 = thermo.carrier().Hs(O2GlobalId_, T);
// dhsTrans -= dmO2*HsO2;
// carrier sensible enthalpy exchange handled via change in mass
// Heat of reaction [J]
return dmC*HsC - dmCO2*HCO2;
return dmC*HsC - dmCO2*HcCO2_;
}

3
src/lagrangian/coalCombustion/submodels/surfaceReactionModel/COxidationDiffusionLimitedRate/COxidationDiffusionLimitedRate.H
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@ -86,6 +86,9 @@ class COxidationDiffusionLimitedRate
//- Molecular weight of O2 [kg/kmol]
scalar WO2_;
//- Formation enthalpy for CO2 [J/kg]
scalar HcCO2_;
public:

12
src/lagrangian/coalCombustion/submodels/surfaceReactionModel/COxidationKineticDiffusionLimitedRate/COxidationKineticDiffusionLimitedRate.C
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@ -45,7 +45,8 @@ COxidationKineticDiffusionLimitedRate
O2GlobalId_(owner.composition().globalCarrierId("O2")),
CO2GlobalId_(owner.composition().globalCarrierId("CO2")),
WC_(0.0),
WO2_(0.0)
WO2_(0.0),
HcCO2_(0.0)
{
// Determine Cs ids
label idSolid = owner.composition().idSolid();
@ -56,6 +57,8 @@ COxidationKineticDiffusionLimitedRate
const scalar WCO2 = owner.thermo().carrier().W(CO2GlobalId_);
WC_ = WCO2 - WO2_;
HcCO2_ = owner.thermo().carrier().Hc(CO2GlobalId_);
const scalar YCloc = owner.composition().Y0(idSolid)[CsLocalId_];
const scalar YSolidTot = owner.composition().YMixture0()[idSolid];
Info<< " C(s): particle mass fraction = " << YCloc*YSolidTot << endl;
@ -161,14 +164,11 @@ Foam::scalar Foam::COxidationKineticDiffusionLimitedRate<CloudType>::calculate
dMassSRCarrier[CO2GlobalId_] += dmCO2;
const scalar HsC = thermo.solids().properties()[CsLocalId_].Hs(T);
const scalar HCO2 = thermo.carrier().H(CO2GlobalId_, T);
// carrier enthalpy transfer handled by change in composition
// const scalar HsO2 = thermo.carrier().Hs(O2GlobalId_, T);
// dhsTrans -= dmO2*HsO2;
// carrier sensible enthalpy exchange handled via change in mass
// Heat of reaction [J]
return dmC*HsC - dmCO2*HCO2;
return dmC*HsC - dmCO2*HcCO2_;
}

3
src/lagrangian/coalCombustion/submodels/surfaceReactionModel/COxidationKineticDiffusionLimitedRate/COxidationKineticDiffusionLimitedRate.H
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@ -94,6 +94,9 @@ class COxidationKineticDiffusionLimitedRate
//- Molecular weight of O2 [kg/kmol]
scalar WO2_;
//- Formation enthalpy for CO2 [J/kg]
scalar HcCO2_;
public:

14
src/lagrangian/coalCombustion/submodels/surfaceReactionModel/COxidationMurphyShaddix/COxidationMurphyShaddix.C
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@ -57,7 +57,8 @@ Foam::COxidationMurphyShaddix<CloudType>::COxidationMurphyShaddix
O2GlobalId_(owner.composition().globalCarrierId("O2")),
CO2GlobalId_(owner.composition().globalCarrierId("CO2")),
WC_(0.0),
WO2_(0.0)
WO2_(0.0),
HcCO2_(0.0)
{
// Determine Cs ids
label idSolid = owner.composition().idSolid();
@ -68,6 +69,8 @@ Foam::COxidationMurphyShaddix<CloudType>::COxidationMurphyShaddix
const scalar WCO2 = owner.thermo().carrier().W(CO2GlobalId_);
WC_ = WCO2 - WO2_;
HcCO2_ = owner.thermo().carrier().Hc(CO2GlobalId_);
const scalar YCloc = owner.composition().Y0(idSolid)[CsLocalId_];
const scalar YSolidTot = owner.composition().YMixture0()[idSolid];
Info<< " C(s): particle mass fraction = " << YCloc*YSolidTot << endl;
@ -221,14 +224,11 @@ Foam::scalar Foam::COxidationMurphyShaddix<CloudType>::calculate
dMassSolid[CsLocalId_] += dOmega*WC_;
const scalar HsC = thermo.solids().properties()[CsLocalId_].Hs(T);
const scalar HCO2 = thermo.carrier().H(CO2GlobalId_, T);
// carrier enthalpy transfer handled by change in composition
// const scalar HsO2 = thermo.carrier().Hs(O2GlobalId_, T);
// dhsTrans -= dmO2*HsO2;
// carrier sensible enthalpy exchange handled via change in mass
// Heat of reaction
return dOmega*(WC_*HsC - (WC_ + WO2_)*HCO2);
// Heat of reaction [J]
return dOmega*(WC_*HsC - (WC_ + WO2_)*HcCO2_);
}

3
src/lagrangian/coalCombustion/submodels/surfaceReactionModel/COxidationMurphyShaddix/COxidationMurphyShaddix.H
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@ -115,6 +115,9 @@ class COxidationMurphyShaddix
//- Molecular weight of O2 [kg/kmol]
scalar WO2_;
//- Formation enthalpy for CO2 [J/kg]
scalar HcCO2_;
public: